ADU error 503

hello, recently I had forgotten to start ADu for a while and managed to accrue about 200 replays that have yet to upload.
somehow when I tried to use ADU again to upload them it gives me an error 503, what can I do to fix this?
to help here is the complete error message:

I also have problems with vbaddict today. It takes some minutes (!) to go online and a lot of uploads just fail. Sometimes error 503 is displayed, but most times there is no error message. I also cant watch my profile, the web server seems to be busy.